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Address: Group 4, Chuling Village, Chaohua Town, Zhengzhou, Henan, China
Contact name:Liu
Henan Hongtai Kiln Refractory Co.,Ltd. |
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Silica Insulation Brick for Coke Oven Glass Kiln Refractory Products
Silica insulating refractory bricks(light weight silica bricks) refer to heat-insulating refractory products made of silica as the main raw material and with an SiO2 content of not less than 91%. In addition to the thermal insulation properties of silicon refractory bricks, it maintains the characteristics of silicon bricks to a large extent. The starting temperature of load softening is high, and the volume expands slightly during the heating process, which enhances the integrity of the kiln. The manufacture of siliceous heat-insulating refractory bricks uses finely pulverized silica as the raw material, adding part of the waste silica bricks or waste siliceous heat-insulating refractory brick powder, mineralizers and burnout additives. Add water to the mixer according to a certain proportion to mix into a mud, which is formed by mechanical or manual molding. After the brick is dried, the residual moisture is less than 0.5% before it can be loaded into the kiln. In order to prevent the violent volume expansion due to the polycrystalline transformation of SiO2, causing cracks in the product, a slower temperature rise and fall speed are required during firing.
Silica heat-insulating refractory bricks generally use crystalline
quartzite or silica sand as raw materials, and the mineral
composition is: phosphorite 78% to 86%, cristobalite 13% to 15%,
and quartz 4% to 7%. Add combustible materials to the ingredients,
such as coke, sawdust, anthracite, carbonized rice husk, or use gas
foaming to form a porous structure. Silicone heat-insulating
refractory bricks are heat-insulating silicon refractory products
with a SiO2 content of more than 90% and a bulk density of less
than 1.2. The refractoriness and softening temperature under load
are not much different from ordinary silica bricks with the same
composition. However, due to the many pores, the compressive
strength, slag resistance, and corrosion resistance are not as good
as ordinary silica bricks, but the thermal shock resistance has
been improved. It is similar to the production process of ordinary
silica bricks. Some mineralizers (CaO, Fe2O3) are added to the
ingredients to promote the conversion of quartz, and pulp waste
liquid is used as a binder to make the bricks have a certain
strength. When using coke or anthracite as combustible additives,
because the ash will be brought into Fe2O3 and Al2O3, there is no
need to add iron scales in the ingredients. When the siliceous
heat-insulating refractory bricks are fired, a strong oxidizing
flame should be maintained before 1200°C to make the additions burn
out completely.
Silicone heat-insulating refractory bricks have the characteristics
of low thermal conductivity, high load softening temperature, small
residual expansion, and excellent reburning line change
performance. They are suitable for industrial furnaces such as coke
ovens, hot blast furnaces, glass furnaces and carbon furnaces. It
is mainly used for the heat insulation layer and working layer of
thermal equipment, and can be used for the heat insulation layer of
various high temperature kiln equipment under high temperature
conditions (≤1500℃) without contact with molten slag. This product
is suitable for the heat insulation material of the silica brick
lining of the high temperature hot blast stove of the large blast
furnace and the heat insulation of the silica brick masonry of the
glass furnace.
General light silica bricks can be divided into two levels: the
first grade can be used in the top of the steel rolling heating
furnace and the roof of the silicate industrial kiln, and can be
directly in contact with the flame; the second grade is used in the
general industrial kiln Insulation. Applicable to: industrial
furnaces such as coke ovens, hot blast furnaces, glass melting
furnaces and carbon calciners. Generally, the bulk density of
silicon heat insulation refractory bricks is 0.9-1.1g/cm3, the
compressive strength is 2.0-5.9MPa, and the thermal conductivity is
0.35-0.42W/(m·K). It has excellent fire resistance, its softening
temperature under load is close to 1620℃ for dense silica bricks,
with only a small residual expansion, and its thermal stability is
better than dense silica bricks. Therefore, siliceous
heat-insulating refractory bricks can be used for a long time under
high temperature conditions (1500-1550°C) without contact with
molten slag, but they are especially suitable for high-temperature
hot-blast furnaces of large blast furnaces. Thermal insulation of
silica brick gas.
Coke Oven Glass Kiln Refractory Products Industrial Silica Insulation Brick
Items | GGR-1.0 | GGR-1.10 | GGR-1.15 | GGR-1.20 | |
SiO2 % ≥ | 91 | 91 | 91 | 91 | |
Bulk density g/cm3 | 1.0 | 1.10 | 1.15 | 1.20 | |
Cold crushing Strength Mpa | 2 | 3 | 5 | 5 | |
Refractoriness Under Load 0.1Mpa ≥ ℃ | 1400 | 1420 | 1500 | 1520 | |
Liner change on re-heating rate | 1550℃*2h | -- | -- | 0.5 | 0.5 |
1450℃*2h | 0.5 | 0.5 | -- | -- | |
Thermal Conductivity 350 ℃ W/(m.k) | 0.55 | 0.60 | 0.65 | 0.70 | |
Coke Oven Glass Kiln Refractory Products Industrial Silica Insulation Brick
| Straight | Split | Arch | Wedge | Tile | Other Shape |
| L×W×H(mm) 230×114×65 230×114×75 | L×W×H (mm) 230×114×25 230×114×32 230×114×37 230×114×50 | L×W×H/h(mm) 230×114×65/45 230×114×65/55 230×114×75/45 230×114×75/55 230×114×75/65 | L×W×H/h (mm) 230×114×65/45 230×114×65/55 220×114×75/45 220×114×75/55 220×114×75/65 | L×W×H (mm) 230×230×38 230×230×50 230×230×65 230×230×75 | Key brick, Skew brick, Soap, Checker, Neck, Taper, |
| We also can make brick according to customers' drawing and requirements. | |||||
Coke Oven Glass Kiln Refractory Products Industrial Silica
Insulation Brick
Packaging of Silica Insulation Brick for Coke Oven Glass Kiln Refractory Products
1.on wooden pallets with plastic cover: wooden pallet size :930*930
or 1000*1000mm,
2.Load weight of each pallet: 1.5-2.0 tons,
Shipping of Silica Insulation Brick for Coke Oven Glass Kiln Refractory Products
1.Our packaging is as per customer’s request
2.Normal goods delivered by sea transport
3.Sample shipping by express
4.We will shipping and delivery goods timely, quality and quantity
guaranteed, and also in accordance with the contract and customer's
requirement completely.
Delivery:
15-30 days working day for large quantity. The shipment we will
arrange as soon as possible. Of course, if it is a custom products,
the shipping time will delay.
Sample:
Usually by EMS, DHL, UPS, TNT, FedEx. Anyway you like. Bulk order: Usually by sea.
Payment:
It can be through T/T, L/C at sight. The specific terms determined
according to the quantity of the goods, etc.
Your inquiry related to our product & price will be replied
within 24 hours.
Coke Oven Glass Kiln Refractory Products Industrial Silica
Insulation Brick
Henan hongtai kiln refractory co., LTD. Is well aware that there are thousands of demands from customers, which can be summarized in four aspects: reliable quality, timely delivery, reasonable price and considerate service.The company will continue to adhere to the corporate spirit of "contributing to society and serving customers" and the business philosophy of "mutual benefit, win-win, integrity, efficiency, preciseness and responsibility".Our company is willing to develop a wide range of technical exchanges with colleges and universities and colleagues from all walks of life at home and abroad in a flexible and diversified way.
Henan hongtai kiln refractory co., LTD. Main products are high alumina brick, clay brick, fused zirconium corundum brick, fireproof ball lightweight insulation brick, wear-resistant pouring material, corundum pouring material, low cement high strength pouring material, impermeable material, self-flowing material, plastic material, and various types of refractory materials.For different industries, the cement industry with anti-flaking high-alumina bricks, alkali resistant bricks, phosphate bricks; Boiler industry uses all kinds of brand wear-resisting brick, corundum brick, mullite brick and other finalizing materials.The company insists on "product quality is the life, enterprise integrity is the foundation", in the fierce market competition, won many users' trust and praise.The products are sold all over the country, as far as Vietnam, India, South Korea, Pakistan, Kazakhstan and other southeast Asian countries and regions.
Henan hongtai kiln refractory co. LTD. : "quality first, reputation first, customer first" is our aim .Scientific management, strong technical force, perfect testing means, advanced technological equipment and stable product quality are the guarantee of quality service. Henan hongtai kiln refractories co., LTD sincerely hopes to cooperate with you hand in hand and in good faith.
Silica Insulation Brick for Coke Oven Glass Kiln Refractory Products
1. Strong professional:
Our company has thirty years producing experience in refractory
products. Our manager will supervise on a various refractorys
production materials, process control, quality supervision and
package delivery, and ensure the products are 100% qualified.
2.Annual supply:
Our company has passed ISO9001 quality management system
certification and SGS certification. And the annual supply of
shaped and unshaped refractory product is 28, 800-35, 000
tons.
3.Export experiences:
Now we have gained a global sales network reaching Taiwan, Russia,
South Korea, Vietnam, Pakistan, Bulgaria, French, India,
Egypt,Congo, Angola, South Africa, and so on.
4. Production equipment:
Production and testing equipments are new, complete and automated
or semi- automated. Such modern facilities and equipments have
provided the fine technical guarantee for the production and
testing.
5. Testing equipment:
Our company's testing equipments as follows:
High Temperature RUL Tester
Bulk Density Tester
The Pressure Tester
Refractoriness Tester
Our competitive Advantage:
1.Competitive Price. Make the products competitive in your market.
2.Quick Response:We promise quick response at the very first moment when we received your request. 3.Superior Customer Service:The company provides after sales service ensuring customer’s satisfactions,we believe in Long term partnership bringing loyalty.
4.We had been on this filed for many years and we have our own research team,the prouduction process could be concrolled strictly.
5.We have developed stable customer base overseas and kept long-term cooperation.
Silica Insulation Brick for Coke Oven Glass Kiln Refractory Products
1.Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand,quickly respond mails and provide solutions.
2.Free sample of dry ramming mass
Sample and trial order are accepted for the quality evaluation
3.Strict quality control
Arrange production on time and control quality strictly.
4.Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5.Professional Services
Provide all the detailed news and pictures from order to delivery;offer relative export documents and original certificate if needed;warm and considerable after-sale service. 
